SuperTuxKart 1.5 upstream source (from official release tarball)

lib/graphics_engine/include/ge_spin_lock.hpp

@@ -0,0 +1,14 @@
+#ifndef HEADER_GE_SPIN_LOCK_HPP
+#define HEADER_GE_SPIN_LOCK_HPP
+
+#include <atomic>
+class GESpinLock
+{
+    mutable std::atomic_flag m_locked = ATOMIC_FLAG_INIT;
+public:
+    void lock() const
+                  { while (m_locked.test_and_set(std::memory_order_acquire)); }
+    void unlock() const          { m_locked.clear(std::memory_order_release); }
+};
+
+#endif